Answer:
7 < x < 8
Step-by-step explanation:

Answer:
3.205
Step-by-step explanation:
convert the decimal number to a fraction

To divide by fraction, multiply by the reciprocal of that fraction

Reduce the numbers with the greatest common divisor 9

Calculate the product

Now turn it to a decimal which will be

Step-by-step explanation:
(1/12) / (3/4)
= (1/12) * (4/3)
= 1/9.
Answer:
Option B is correct.
the value of discriminant is, -7
Step-by-step explanation:
Given the equation: 
To find the value of discriminant 
A quadratic equation is of the form
where a, b and c are coefficient of the equation.
On comparing with given equation we have;
a = 1 , b = 1 and c = 2
then;
Discriminant = 
Therefore, the value of discriminant is, -7
To find the value of the interior angle, the equation is (n-2) 180n, where n is the number of sides.